本研究以總體聚合法以及溶液聚合法合成不飽和聚酯樹脂(UP)、環氧樹脂(EPR)以及乙烯基指樹脂(VER)作為研究基材。其中，UP樹脂依據不同化學結構包含MA-PG、MA-PA-PG以及MA-HD三種類型，並且EPR與VER樹脂皆包含三種聚合度(0.16、2、5)。樹脂的各項分子特性透過末端官能基滴定法、核磁共振光譜儀(Nuclear Magnetic Resonance Spectrometer, NMR)以及凝膠滲透層析儀(Gel Permeation Chromatography, GPC)進行鑑定分析。
添加劑合成的部分，以無乳化劑之乳化聚合法合成核心為聚丙烯酸丁酯(PBA)，外殼為甲基丙烯酸甲酯(MMA)的核殼型橡膠顆粒(CSR)。其中，外殼單體以15 mol%甲基丙烯酸環氧丙酯(GMA)改質。另外，由石墨烯衍生的材料應用則是以自行合成之氧化石墨烯(GO)作為Pickering穩定劑，透過Pickering乳化聚合法合成外殼為GO，核心為聚苯乙烯(PS)的高分子/GO核殼型顆粒(PS-GO)。作為添加劑的CSR以及PS-GO核殼型顆粒皆為次微米尺寸，顆粒的型態以及實際分布狀態以TEM顯微影像觀察及以動態光散射法(DLS)測量。
研究目標為探討以添加劑改質後的樹脂基材之性質變化以及添加劑對樹脂固化時的體積收縮影響。預期以CSR顆粒降低St/UP/additive三成分系統聚合固化體積收縮與改善樹脂材料的機械性質，提升樹脂基材的韌性。另外，利用PS-GO顆粒降低St/UP/additive三成分系統聚合固化體積收縮與增進樹脂基材之導熱與導電性質。

In this study, unsaturated polyester resins (UP), epoxy resins (EPR) and vinyl ester resins (VER) were synthesized by bulk polymerization and solution polymerization as the thermoset resin matrices. Among them, there are three types of UP resins, including MA-PG, MA-PA-PG and MA-HD. Both EPR and VER resins include different degree of polymerization (0.16, 2 and 5). The molecular properties of resins were characterized and analyzed by end group titration method, nuclear magnetic resonance spectrometer (NMR) and gel permeation chromatography (GPC).
For additive synthesis, the core-shell rubber particles (CSR) with poly(butyl acrylate) (PBA) as core and poly(methyl methacrylate) (PMMA) as the shell were synthesized by emulsifier-free emulsion polymerization. The shell was modified with 15 mol% glycidyl methacrylate (GMA). In addition, the polymer/graphene oxide (GO) core-shell particles (PS-GO) were synthesized by Pickering emulsion polymerization, where the GO was used as Pickering stabilizer. The core structure of PS-GO is polystyrene. Both CSR and PS/GO particles were sub-micron scale, and the morphology and actual distribution of particles were observed with TEM and measured by DLS.
The research objective is to investigate the properties change of the resin matrix after modification with additives, such as CSR and PS-GO core-shell particle, and the effect of additives on volume shrinkage during the curing reaction of resins. It is expected that the addition of CSR particles can lead to a decrease in volume shrinkage, improve the mechanical properties and enhance the toughness of the cured resin matrix. In addition, the addition of PS/GO particle is expected to increase thermal conductivity and electrical conductivity properties of the cured resin matrix.

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